Telephone dialing device



TELEPHONE DIALING DEVICE Filed April 15, 1935 fames FC'ase y Jerry [Cane INVENTORS ATTOR N EY Patented Aug. 3, 1937 PATENT OFFICE TELEPHONE DIALING DEVICE James F. Casey, Woodside, and Jerry Kane, New York, N. Y.

Application April 15, 1935, Serial No. 16,520

2 Claims.

This invention relates to devices for facilitating the dialing of telephone numbers.

The primary object of our invention is to provide a device of particularly simple and econom- 5 ical construction which may be readily attached to the standard automatic telephone dial, by which to facilitate the operation of the dialing disc.

The invention will be fully and comprehensively understood from a consideration of the following detailed description when read in connection with the accompanying drawings which form part of the application, with the understanding, however, that the improvement is capable of extended application and is not confined to the exact showing of the drawing nor to the precise construction described and, therefore, such changes and modifications may be made therein as do not affect the spirit of the invention nor exceed the scope thereof as expressed in the appended claims.

In the drawing:

Fig. 1 is a plan view of the base of an automatic telephone instrument incorporating our dialing device; and

Fig. 2 is a side elevational view, with parts broken away, of the device as shown in Fig. 1.

In that the operation of our dialing device appertains to the automatic telephone instrument as now in universal operation, a brief description of the latter follows. The numeral 3 indicates the usual telephone base upon which is mounted a dialing drum 4, the upper surface of which bears a series of numerals or other characters arranged in an annular ring and equally spaced from each other. A dialing disc 5 is rotationally mounted on the drum 4 and is provided with a series of finger holes 6 corresponding to and in registry with the characters on the dialing i drum in the normal position of the disc. Rigidly mounted on the dialing drum 4 and projecting over the disc 5 is a finger bar I which functions during the dialing operation to stop the dial at the position corresponding to the number or 45 character being dialed, that is to say, should it be intended to dial the number 5 the operators finger is placed in the aperture in the dialing disc directly over that number and the dial disc. is rotated to the right until the operator's finger 50 coma into engagement with the bar I. As soon as the dial disc is released the same is returned to its normal position by spring means within the dial proper during which movement a series of electrical impulses are sent to the central 55 telephone station.

In the standard telephone instrument a. raised portion 8 is provided in the center of the automatic dial proper. It is upon the peripheral surface of the member 8 that our dialing device is attached by providing a plate 8, the peripheral depending flange I0 of which grips the periphery of the member 8. Into the flange III is cut a series of slots II to render the flange more flexible. At the center of the plate 9 a boss I2 is formed into which is cut a spherical socket l3. The socket i3 is so shaped as to retain within it a ball 14 which is segmental in cross-section. From the exposed surface of the ball I projects a radial. arm l5 which has at its free end a rod l6 disposed perpendicularly to the face of the dial disc 5.

At the lower end of the rod [6 is attached a conical tip ll at a radial distance from the center of the dial equal to that of the finger holes 6. The periphery of the conical tip I1 is so tapered as to be conveniently placed within one of the finger holes 6, in which position the tapered periphery of the tip I! will cause the rod IE to maintain a perpendicular position. The upper end of the rod i6 is reduced in'diameter to form a spindle l8 onto which is rotatably mounted a spherical grip IS, a portion of the periphery of which is knurled. The spherical shape of the grip I9 is preferred in that the grip in the manipulation of the device is both raised and revolved about the dialing center.

The operation of our device in facilitating the dialing of telephone numbers is as follows. The grip I9 is grasped and the tip I1 is raised out of the dialing disc 5. The tip I1 is then moved to a position over the character to be dialed and is lowered into the finger hole 6 over that character. During this manipulation the arm l5 guides the tip ll in its orbit movement so that the latter may be readily engaged in the desired finger hole. The grip I9 is then swung to the right carrying with it the dialing disc 5 until the tip n engages with the bar 1. The tip 11 is then aballinsaideoeket.anarmintegral withand extending from said baILmeans extending from saidarmadaptedtoenmtheholesoiatela phone dialing plate for the purpose of turning the latter, and means whereby the mentioned hole-engaging means may be conveniently operated.

JAMES 1'. CASEY. JERRY KANE. 

